Service bulletins for the 2023 Peterbilt 579
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
91 on file from NHTSA, as of 2026-10-19.
By type
By component
By topic
Only bulletins with type: Other are shown. Show all
| 14-036 | 2026-04-07. Other. STRUCTURE:BODY. One-Piece Aluminum Crossmember Repair - Repair procedures are available to support the replacement of intermediate or midship one-piece aluminum crossmembers. |
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| 46-001 HVAC Update | 2024-09-10. Other. ELECTRICAL SYSTEM. BEV Phase 2 tools have been added to the BEV required tools lists. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.